Fatal error: Uncaught Error: Interface 'Symfony\Component\Mime\MimeTypeGuesserInterface' not found in /home/devmecseminars/public_html/mec/vendor/symfony/mime/MimeTypesInterface.php:17 Stack trace: #0 {main} thrown in /home/devmecseminars/public_html/mec/vendor/symfony/mime/MimeTypesInterface.php on line 17